The Grogol River (Kali Grogol) is a small river in the
western part of the
Special Capital Region of Jakarta
Jakarta (; , bew, Jakarte), officially the Special Capital Region of Jakarta ( id, Daerah Khusus Ibukota Jakarta) is the capital and largest city of Indonesia. Lying on the northwest coast of Java, the world's most populous island, Jakarta ...
, Indonesia. The lower portions of the original river have been channelized with
levees built along its banks,
but flooding remains a real concern.
Illegal building
Illegal construction (also known as illegal building or illegal housing) is construction work (or the result of such) without a valid construction permit. Besides the potential technical hazards on uncontrolled construction sites and in finishe ...
s built along its banks were removed in 2014,
and fifty-eight village families were provided with replacement housing, but most of them could not be accommodated.
Course
The Grogol River arises around in Desa Kedungbadak and runs north between the
Krukut River
The Krukut River is a river flowing in Jakarta originating in Bogor Regency. In the past the river was clean and one of the tourist attractions during the Dutch East Indies administration, but due to denser housing on the banks and lack of maint ...
to the east and the Pasanggrahan River to the west, further north the Sekretaris River
[, United States National Geospatial-Intelligence Agency] arises to the west. The Grogol passes through Desa Sukadamai and Desa Kencana. After crossing the
Jakarta Outer Ring Road (''Jalan Tol Lingkar Luar Jakarta'') it follows parallel to and just east of Route 12. At there is an overflow channel that goes west to the Pasanggrahan River. The Grogol continues north through Senayan City and just west of
Gelora Bung Karno Stadium. It serves as a drain for
Palmerah Urban Village.
Beginning at Bank Danamon Central Park it parallels
Route 1 until where an overflow channel heads due west to join the Sekretaris River, while the channelized river continues beside Route 1 and flows into the
Angke River
The Angke River ( or , ) is a long river in Jakarta, Indonesia. The river flows from Bogor area of West Java, passing through the cities of Tangerang (Banten) and Jakarta into the Java Sea via the Cengkareng Drain.BBWS Ciliwung Cisadane. ''Pengen ...
at .
Hydrology
The Grogol River has a length of , with the watershed area () of 32.08 km².
[ The average daily rainfall is 144 mm, with the peak flow rate at 290 m³ per second.][BBWS Ciliwung Cisadane. ''Pengendalian Banjir dan Perbaikan Sungai Ciliwung Cisadane'' (PBPS CC)]
Archived in ''Konservasi DAS Ciliwung''
- April 2012.
Geography
The river flows in the northwest area of Java with predominantly tropical rainforest climate
A tropical rainforest climate, humid tropical climate or equatorial climate is a tropical climate sub-type usually found within 10 to 15 degrees latitude of the equator. There are some other areas at higher latitudes, such as the coast of southea ...
(designated as ''Af'' in the Köppen–Geiger climate classification).
References
{{Rivers of Java
Rivers of Jakarta
Rivers of Indonesia